norepinephrine


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Related to norepinephrine: dopamine, serotonin

nor·ep·i·neph·rine

 (nôr′ĕp-ə-nĕf′rĭn)
n.
A substance, C8H11NO3, both a hormone and neurotransmitter, that is secreted by the adrenal medulla and the nerve endings of the sympathetic nervous system and causes vasoconstriction and increases in heart rate, blood pressure, and the sugar level of the blood. Also called noradrenaline.

norepinephrine

(ˌnɔːrɛpɪˈnɛfrɪn; -riːn)
n
(Biochemistry) the US name for noradrenaline

nor•ep•i•neph•rine

(ˌnɔr ɛp əˈnɛf rɪn, -rin)

n.
a neurotransmitter that is similar to epinephrine, acts to constrict blood vessels and dilate bronchi, used esp. in medical emergencies to raise blood pressure.

norepinephrine

(or noradrenaline) A neurotransmitter affecting various kinds of activity in the body, including blood flow.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.norepinephrine - a catecholamine precursor of epinephrine that is secreted by the adrenal medulla and also released at synapses
pressor, vasoconstrictive, vasoconstrictor - any agent that causes a narrowing of an opening of a blood vessel: cold or stress or nicotine or epinephrine or norepinephrine or angiotensin or vasopressin or certain drugs; maintains or increases blood pressure
monoamine neurotransmitter - a monoamine that is functionally important in neural transmission
catecholamine - any of a group of chemicals including epinephrine and norepinephrine that are produced in the medulla of the adrenal gland
Translations
Norepinephrin

norepinephrine

n noradrenalina, norepinefrina (INN)
References in periodicals archive ?
Test-tube and animal studies have indicated that release of norepinephrine within the brain can stimulate neurons to take on new tasks and compensate for damaged tissues.
Norepinephrine is closely related to another neurotransmitter, dopamine.
The researchers speculate that the excess hormone receptors provide more docking sites for epinephrine and norepinephrine and multiply the message to the heart to beat faster.
Tissue distribution studies suggested that Azedra had increased uptake compared with conventional MIBG in tissues that express the norepinephrine transporter.
The investigators then found that when they added a synthetic precursor of norepinephrine to a pregnant mouse's drinking water, the mutant fetuses would survive to birth.
Milnacipran is the first of a new class of agents known as norepinephrine serotonin reuptake inhibitors, or NSRIs, which exerts its effect by preferentially inhibiting the reuptake of norepinephrine over serotonin, two neurotransmitters known to play an essential role in regulating pain and mood.
Wellbutrin(R) XL is the first and only once-daily norepinephrine dopamine reuptake inhibitor for the treatment of depression in adults.
When an opioid is removed or its dose reduced, the brain's increased norepinephrine levels are no longer offset by the presence of the opioids.
Researchers found that in addition to increases in blood pressure after consuming the energy drink, participants' norepinephrine levels increased more than twice as much when compared to those who drank the sham drink.
Increasing available norepinephrine may help with focus and attention, and increase subjective sexual excitement.
However, the ADHD and antidepressant medications that increase norepinephrine carry significant side effects and should not be what physicians use to help their patients with low desire.
Levomilnacipran SR is a selective serotonin and norepinephrine reuptake inhibitor.